<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script type="text/javascript">
    var name=prompt("请输入名字");
    var avg=prompt("请输入年龄");
    var dz=prompt("请输入地址");
    alert("我是"+name+",今年"+avg+"岁了,"+"我来自"+dz);
</script>
</body>
</html>